Follow up to https://github.com/zed-industries/zed/pull/21637
After discussing about this feature with the team, we've decided that
diagnostic display in tabs should be: 1) turned off by default, and 2)
only shown when there are file icons. The main reason here being to keep
Zed's UI uncluttered.
This means that you can technically have this setting:
```
"tabs": {
"show_diagnostics": "all"
},
```
...and still don't see any diagnostics because you're missing
`file_icons": true`.
| Error with file icons | Error with no file icons |
|--------|--------|
| <img width="800" alt="Screenshot 2024-12-06 at 21 05 13"
src="https://github.com/user-attachments/assets/babf9cc3-b3b0-492e-9748-3e97d96ce90e">
| <img width="800" alt="Screenshot 2024-12-06 at 21 05 24"
src="https://github.com/user-attachments/assets/5247a5f1-55a0-4c56-8aaf-a0cdd115464f">
|
Release Notes:
- N/A
eb3d3eaebf